contestada

According to Newton's Third Law, what is the equal and opposite force to the downward force of gravity pulling on a man standing on the beach?
A) the man pulling upward on the earth
B) the force of friction holding the man still
C) the pull of the sun keeping the earth in orbit
D) the surrounding air pressure keeping the man in equilibrium

Respuesta :

AL2006

The equal and opposite reaction to the gravitational force of the Earth pulling down on a man standing on the beach is the gravitational force of the man pulling up on the Earth. (A)

To put it in other words ... which should begin to blow your mind if you just take a moment to think about them ...

Your weight on Earth is exactly equal to the Earth's weight on YOU.

A) the man pulling upward on the earth

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